Orchard-heater.



L. M. TREMPER. ORGHARQ'HEATER. APPLICATION FILED 00T` Z0, 19I'Ll..

Patented sept. 1o, 1912.

INVENTOR.'

A Tram/'Ens'.

UNITED sTATEs PATENT o EFIcE.

LOUISEl IBL TREMPR,QF ST. LOUIS, MISSOURI.

ORCHARD-HEATER.

To all fwwm it? may concern: y f Be it' knownthat I', Lonrsn M. Tnmrrnn, a citizen of the United States, resi-dinglat St.` Lou-is, inthe State of Missouri, have 1nvented certain new and useful Improv-el ments in 0rehard'-Heaters, of which vthefellowing is a specification.

This invention relates to improvements in those devices' commonly placed in. orchards and gardens to prevent injury te fruitil or owers by frost through the generation of heat which is confined beneath ablan-ket of smoke.

An object of the invention is the provision of a simple, inexpensive and practicalfheater com-isting ef asmud'gpot connected with a detached fuel reservoir,' these members .be-

" ing so constructed and arranged as to maintain the fuel for a long `period at 'a highlevel in the pot.-

A further object is the provision `of a heater comprising devices for effecting the i' `combustion of the heavy residuurnwhich gathers in the bottom of the smudge-pot.

A further object is, the provision of a vheater whose principal parts can be nested to a copy ',eflect economy of space during shipment and storage.

Otherobjects and advantages will be apparent from a consideration of the follow-v ing parts of this specification and shall be particularly pointed out in the appended claims.

yIn the accompanying d rawing, in\ which like numerals refer to like parts' throughout the several views,.Figure -1 is a sectional elevation serving to illustrate the orchard vheater of my invention, the covers of its two Vreceptacles and a damper used in one thereof being shown in raised position that the structure of the several elements maybe more easily comprehended. Fig. 2 is substantially of an element! of Fig. 1 and depicts the use of a damper to check the consumption of fuel. ln practice I provide a smudge-pot 1 whose sides are slightly inclined and/per-v forated as at 2. Detachably suspended in the mouth of said pot by means of suitable hangers 3 is a member 4f having the form of the frustum of a cone, the bottom and top of said member beingv open and its walls provided with an upper series of perforations 5"and a lower ser1es 6..

Provided in the outer Wall of pot 1 at a *pt int substantially aboveits bottom is an 'veter of the reservoir beingI Specification of Letters Patent. Patented Sept. 10,1912'. Appnmion'iea october 2o, i911. serial No, 855.71m. l

aperture of a size adapted tol recente-,a-

ing'a less depth but much greater fuel capacity than the smudge-pot `and whese'up- ISaid reservoir consists of a receptacle havpered'ge shall be substantially on a level with the upper 4edge of said pot. To this end I prefer a reservoir of the form illustrated, the'same com rising a ffooror bot` tom 9, andflaring wa s 1 0. The lower margin of the reservoir is sustained within the upper portion of a separable base 11 Whose lower edge, normallyy disposed upon the ground, has a decidedly greater eiremnferenlce than its upper edge, as shown. Both' the pot and reservoir maybe provided with suitable flanged'eovers lf2-and ,13 which ,may in place to stop the lburning of ybe secured the oil and prevent the entrance of foreign vsubstances into either vessel.

` Indevices of this character the efficiency ofthe heater depends upon the level of the `oil in the pot,'. e., the lower the level of. the -burning oil, t-he less satisfactoryv are the results obtained. In practice, thereservoir shown will contain about ve (5) gallons of fuel oil and the pot about two (2) gallons;

Obviously, the flow alongthe pipe 7 being unobstructed the'l'evel of the fuel in the two I receptacles will correspond, and the diam substantially twice that of the pot it follows that the flame will be long maintained at a high level;

lVhen the flame comes opposite the point of attachment of pipe 7 the reservoir has beenV drained andthe curved formation of saidl pipe acts to prevent the passage ofthe burny ing fluid from the pot to they reservoir. After the flame has passed below the entrance Yof pipe 7 into the pot said pipe takes on an added useful function in that it conveysa current of air, as indicated by the'arrows,

1 over the surface of t-heheavy res1duum,` ordi rarily hard to burn in a confined space, and brings about complete combustion thereof.

Reverting to member 4, itshould be pointled out that its sides being at\an acute angle to the natural-course ofthe lameserve to hold the same in check and reduce the amount of soot and smoke, while the draft created through its upper perforations 5 not only aids combustion but serves yto spread the flame outwardly from themouth of the receptacle. The lower perforations 6 of ,ineniber l and the aperture G in the lower end thereof come into use only as the level of the oil is lowered and act to supplement the action of perforations 5 in securing 5 -proper combustion of the fuel.

Vhere only a light frost is anticipated a damper, la provided with a handle 4L may be employed, the saine being open only above and below and, therefore, adapted to close x y 0 perforations o and G when dlsposed wit-hln member 4 which results in a decided diminution of the draft and a consequent reduction in the quantity of fuel consumed.

What I claim as new and desire to secure i. by Letters Patent is l. An orchard heater Comprising a fuelrese'rvoir, a fire-pot, a fuel-supply pipe spaeing apart and connecting said reservoir and pot, and devices adapted to faeiiitate coini bustion, the bottom of said reservoir being disposed in a plane subs=antially above the bottom of said pot, the upper edges of said pot and reservoir being disposed in substantially the same horizontal plane, land said pipe communicating with said pot at a peint substantially above its bott-om and oppo- `sitely communicating with said reservoir at pot and reservoir being disposed in substantially the same horizontal plane, and said pipecommunicating with said reservoir at substantially the bottom thereof and oppositely communicating with said pot at a point substantially below the plane of the bottom of said reservoir.A

LOUISE M. TREMPER. Witnesses R. R. FAssIG, W` KEANE SMALL,

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

